1 /* 2 * QEMU Guest Agent win32-specific command implementations 3 * 4 * Copyright IBM Corp. 2012 5 * 6 * Authors: 7 * Michael Roth <mdroth@linux.vnet.ibm.com> 8 * Gal Hammer <ghammer@redhat.com> 9 * 10 * This work is licensed under the terms of the GNU GPL, version 2 or later. 11 * See the COPYING file in the top-level directory. 12 */ 13 #include "qemu/osdep.h" 14 15 #include <wtypes.h> 16 #include <powrprof.h> 17 #include <winsock2.h> 18 #include <ws2tcpip.h> 19 #include <iptypes.h> 20 #include <iphlpapi.h> 21 #include <winioctl.h> 22 #include <ntddscsi.h> 23 #include <setupapi.h> 24 #include <cfgmgr32.h> 25 #include <initguid.h> 26 #include <devpropdef.h> 27 #include <lm.h> 28 #include <wtsapi32.h> 29 #include <wininet.h> 30 31 #include "guest-agent-core.h" 32 #include "vss-win32.h" 33 #include "qga-qapi-commands.h" 34 #include "qapi/error.h" 35 #include "qapi/qmp/qerror.h" 36 #include "qemu/queue.h" 37 #include "qemu/host-utils.h" 38 #include "qemu/base64.h" 39 #include "commands-common.h" 40 41 /* 42 * The following should be in devpkey.h, but it isn't. The key names were 43 * prefixed to avoid (future) name clashes. Once the definitions get into 44 * mingw the following lines can be removed. 45 */ 46 DEFINE_DEVPROPKEY(qga_DEVPKEY_NAME, 0xb725f130, 0x47ef, 0x101a, 0xa5, 47 0xf1, 0x02, 0x60, 0x8c, 0x9e, 0xeb, 0xac, 10); 48 /* DEVPROP_TYPE_STRING */ 49 DEFINE_DEVPROPKEY(qga_DEVPKEY_Device_HardwareIds, 0xa45c254e, 0xdf1c, 50 0x4efd, 0x80, 0x20, 0x67, 0xd1, 0x46, 0xa8, 0x50, 0xe0, 3); 51 /* DEVPROP_TYPE_STRING_LIST */ 52 DEFINE_DEVPROPKEY(qga_DEVPKEY_Device_DriverDate, 0xa8b865dd, 0x2e3d, 53 0x4094, 0xad, 0x97, 0xe5, 0x93, 0xa7, 0xc, 0x75, 0xd6, 2); 54 /* DEVPROP_TYPE_FILETIME */ 55 DEFINE_DEVPROPKEY(qga_DEVPKEY_Device_DriverVersion, 0xa8b865dd, 0x2e3d, 56 0x4094, 0xad, 0x97, 0xe5, 0x93, 0xa7, 0xc, 0x75, 0xd6, 3); 57 /* DEVPROP_TYPE_STRING */ 58 /* The CM_Get_DevNode_PropertyW prototype is only sometimes in cfgmgr32.h */ 59 #ifndef CM_Get_DevNode_Property 60 #pragma GCC diagnostic push 61 #pragma GCC diagnostic ignored "-Wredundant-decls" 62 CMAPI CONFIGRET WINAPI CM_Get_DevNode_PropertyW( 63 DEVINST dnDevInst, 64 CONST DEVPROPKEY * PropertyKey, 65 DEVPROPTYPE * PropertyType, 66 PBYTE PropertyBuffer, 67 PULONG PropertyBufferSize, 68 ULONG ulFlags 69 ); 70 #define CM_Get_DevNode_Property CM_Get_DevNode_PropertyW 71 #pragma GCC diagnostic pop 72 #endif 73 74 #ifndef SHTDN_REASON_FLAG_PLANNED 75 #define SHTDN_REASON_FLAG_PLANNED 0x80000000 76 #endif 77 78 /* multiple of 100 nanoseconds elapsed between windows baseline 79 * (1/1/1601) and Unix Epoch (1/1/1970), accounting for leap years */ 80 #define W32_FT_OFFSET (10000000ULL * 60 * 60 * 24 * \ 81 (365 * (1970 - 1601) + \ 82 (1970 - 1601) / 4 - 3)) 83 84 #define INVALID_SET_FILE_POINTER ((DWORD)-1) 85 86 struct GuestFileHandle { 87 int64_t id; 88 HANDLE fh; 89 QTAILQ_ENTRY(GuestFileHandle) next; 90 }; 91 92 static struct { 93 QTAILQ_HEAD(, GuestFileHandle) filehandles; 94 } guest_file_state = { 95 .filehandles = QTAILQ_HEAD_INITIALIZER(guest_file_state.filehandles), 96 }; 97 98 #define FILE_GENERIC_APPEND (FILE_GENERIC_WRITE & ~FILE_WRITE_DATA) 99 100 typedef struct OpenFlags { 101 const char *forms; 102 DWORD desired_access; 103 DWORD creation_disposition; 104 } OpenFlags; 105 static OpenFlags guest_file_open_modes[] = { 106 {"r", GENERIC_READ, OPEN_EXISTING}, 107 {"rb", GENERIC_READ, OPEN_EXISTING}, 108 {"w", GENERIC_WRITE, CREATE_ALWAYS}, 109 {"wb", GENERIC_WRITE, CREATE_ALWAYS}, 110 {"a", FILE_GENERIC_APPEND, OPEN_ALWAYS }, 111 {"r+", GENERIC_WRITE | GENERIC_READ, OPEN_EXISTING}, 112 {"rb+", GENERIC_WRITE | GENERIC_READ, OPEN_EXISTING}, 113 {"r+b", GENERIC_WRITE | GENERIC_READ, OPEN_EXISTING}, 114 {"w+", GENERIC_WRITE | GENERIC_READ, CREATE_ALWAYS}, 115 {"wb+", GENERIC_WRITE | GENERIC_READ, CREATE_ALWAYS}, 116 {"w+b", GENERIC_WRITE | GENERIC_READ, CREATE_ALWAYS}, 117 {"a+", FILE_GENERIC_APPEND | GENERIC_READ, OPEN_ALWAYS }, 118 {"ab+", FILE_GENERIC_APPEND | GENERIC_READ, OPEN_ALWAYS }, 119 {"a+b", FILE_GENERIC_APPEND | GENERIC_READ, OPEN_ALWAYS } 120 }; 121 122 #define debug_error(msg) do { \ 123 char *suffix = g_win32_error_message(GetLastError()); \ 124 g_debug("%s: %s", (msg), suffix); \ 125 g_free(suffix); \ 126 } while (0) 127 128 static OpenFlags *find_open_flag(const char *mode_str) 129 { 130 int mode; 131 Error **errp = NULL; 132 133 for (mode = 0; mode < ARRAY_SIZE(guest_file_open_modes); ++mode) { 134 OpenFlags *flags = guest_file_open_modes + mode; 135 136 if (strcmp(flags->forms, mode_str) == 0) { 137 return flags; 138 } 139 } 140 141 error_setg(errp, "invalid file open mode '%s'", mode_str); 142 return NULL; 143 } 144 145 static int64_t guest_file_handle_add(HANDLE fh, Error **errp) 146 { 147 GuestFileHandle *gfh; 148 int64_t handle; 149 150 handle = ga_get_fd_handle(ga_state, errp); 151 if (handle < 0) { 152 return -1; 153 } 154 gfh = g_new0(GuestFileHandle, 1); 155 gfh->id = handle; 156 gfh->fh = fh; 157 QTAILQ_INSERT_TAIL(&guest_file_state.filehandles, gfh, next); 158 159 return handle; 160 } 161 162 GuestFileHandle *guest_file_handle_find(int64_t id, Error **errp) 163 { 164 GuestFileHandle *gfh; 165 QTAILQ_FOREACH(gfh, &guest_file_state.filehandles, next) { 166 if (gfh->id == id) { 167 return gfh; 168 } 169 } 170 error_setg(errp, "handle '%" PRId64 "' has not been found", id); 171 return NULL; 172 } 173 174 static void handle_set_nonblocking(HANDLE fh) 175 { 176 DWORD file_type, pipe_state; 177 file_type = GetFileType(fh); 178 if (file_type != FILE_TYPE_PIPE) { 179 return; 180 } 181 /* If file_type == FILE_TYPE_PIPE, according to MSDN 182 * the specified file is socket or named pipe */ 183 if (!GetNamedPipeHandleState(fh, &pipe_state, NULL, 184 NULL, NULL, NULL, 0)) { 185 return; 186 } 187 /* The fd is named pipe fd */ 188 if (pipe_state & PIPE_NOWAIT) { 189 return; 190 } 191 192 pipe_state |= PIPE_NOWAIT; 193 SetNamedPipeHandleState(fh, &pipe_state, NULL, NULL); 194 } 195 196 int64_t qmp_guest_file_open(const char *path, const char *mode, Error **errp) 197 { 198 int64_t fd = -1; 199 HANDLE fh; 200 HANDLE templ_file = NULL; 201 DWORD share_mode = FILE_SHARE_READ; 202 DWORD flags_and_attr = FILE_ATTRIBUTE_NORMAL; 203 LPSECURITY_ATTRIBUTES sa_attr = NULL; 204 OpenFlags *guest_flags; 205 GError *gerr = NULL; 206 wchar_t *w_path = NULL; 207 208 if (!mode) { 209 mode = "r"; 210 } 211 slog("guest-file-open called, filepath: %s, mode: %s", path, mode); 212 guest_flags = find_open_flag(mode); 213 if (guest_flags == NULL) { 214 error_setg(errp, "invalid file open mode"); 215 goto done; 216 } 217 218 w_path = g_utf8_to_utf16(path, -1, NULL, NULL, &gerr); 219 if (!w_path) { 220 goto done; 221 } 222 223 fh = CreateFileW(w_path, guest_flags->desired_access, share_mode, sa_attr, 224 guest_flags->creation_disposition, flags_and_attr, 225 templ_file); 226 if (fh == INVALID_HANDLE_VALUE) { 227 error_setg_win32(errp, GetLastError(), "failed to open file '%s'", 228 path); 229 goto done; 230 } 231 232 /* set fd non-blocking to avoid common use cases (like reading from a 233 * named pipe) from hanging the agent 234 */ 235 handle_set_nonblocking(fh); 236 237 fd = guest_file_handle_add(fh, errp); 238 if (fd < 0) { 239 CloseHandle(fh); 240 error_setg(errp, "failed to add handle to qmp handle table"); 241 goto done; 242 } 243 244 slog("guest-file-open, handle: % " PRId64, fd); 245 246 done: 247 if (gerr) { 248 error_setg(errp, QERR_QGA_COMMAND_FAILED, gerr->message); 249 g_error_free(gerr); 250 } 251 g_free(w_path); 252 return fd; 253 } 254 255 void qmp_guest_file_close(int64_t handle, Error **errp) 256 { 257 bool ret; 258 GuestFileHandle *gfh = guest_file_handle_find(handle, errp); 259 slog("guest-file-close called, handle: %" PRId64, handle); 260 if (gfh == NULL) { 261 return; 262 } 263 ret = CloseHandle(gfh->fh); 264 if (!ret) { 265 error_setg_win32(errp, GetLastError(), "failed close handle"); 266 return; 267 } 268 269 QTAILQ_REMOVE(&guest_file_state.filehandles, gfh, next); 270 g_free(gfh); 271 } 272 273 static void acquire_privilege(const char *name, Error **errp) 274 { 275 HANDLE token = NULL; 276 TOKEN_PRIVILEGES priv; 277 278 if (OpenProcessToken(GetCurrentProcess(), 279 TOKEN_ADJUST_PRIVILEGES | TOKEN_QUERY, &token)) 280 { 281 if (!LookupPrivilegeValue(NULL, name, &priv.Privileges[0].Luid)) { 282 error_setg(errp, QERR_QGA_COMMAND_FAILED, 283 "no luid for requested privilege"); 284 goto out; 285 } 286 287 priv.PrivilegeCount = 1; 288 priv.Privileges[0].Attributes = SE_PRIVILEGE_ENABLED; 289 290 if (!AdjustTokenPrivileges(token, FALSE, &priv, 0, NULL, 0)) { 291 error_setg(errp, QERR_QGA_COMMAND_FAILED, 292 "unable to acquire requested privilege"); 293 goto out; 294 } 295 296 } else { 297 error_setg(errp, QERR_QGA_COMMAND_FAILED, 298 "failed to open privilege token"); 299 } 300 301 out: 302 if (token) { 303 CloseHandle(token); 304 } 305 } 306 307 static void execute_async(DWORD WINAPI (*func)(LPVOID), LPVOID opaque, 308 Error **errp) 309 { 310 HANDLE thread = CreateThread(NULL, 0, func, opaque, 0, NULL); 311 if (!thread) { 312 error_setg(errp, QERR_QGA_COMMAND_FAILED, 313 "failed to dispatch asynchronous command"); 314 } 315 } 316 317 void qmp_guest_shutdown(const char *mode, Error **errp) 318 { 319 Error *local_err = NULL; 320 UINT shutdown_flag = EWX_FORCE; 321 322 slog("guest-shutdown called, mode: %s", mode); 323 324 if (!mode || strcmp(mode, "powerdown") == 0) { 325 shutdown_flag |= EWX_POWEROFF; 326 } else if (strcmp(mode, "halt") == 0) { 327 shutdown_flag |= EWX_SHUTDOWN; 328 } else if (strcmp(mode, "reboot") == 0) { 329 shutdown_flag |= EWX_REBOOT; 330 } else { 331 error_setg(errp, QERR_INVALID_PARAMETER_VALUE, "mode", 332 "'halt', 'powerdown', or 'reboot'"); 333 return; 334 } 335 336 /* Request a shutdown privilege, but try to shut down the system 337 anyway. */ 338 acquire_privilege(SE_SHUTDOWN_NAME, &local_err); 339 if (local_err) { 340 error_propagate(errp, local_err); 341 return; 342 } 343 344 if (!ExitWindowsEx(shutdown_flag, SHTDN_REASON_FLAG_PLANNED)) { 345 g_autofree gchar *emsg = g_win32_error_message(GetLastError()); 346 slog("guest-shutdown failed: %s", emsg); 347 error_setg_win32(errp, GetLastError(), "guest-shutdown failed"); 348 } 349 } 350 351 GuestFileRead *guest_file_read_unsafe(GuestFileHandle *gfh, 352 int64_t count, Error **errp) 353 { 354 GuestFileRead *read_data = NULL; 355 guchar *buf; 356 HANDLE fh = gfh->fh; 357 bool is_ok; 358 DWORD read_count; 359 360 buf = g_malloc0(count + 1); 361 is_ok = ReadFile(fh, buf, count, &read_count, NULL); 362 if (!is_ok) { 363 error_setg_win32(errp, GetLastError(), "failed to read file"); 364 } else { 365 buf[read_count] = 0; 366 read_data = g_new0(GuestFileRead, 1); 367 read_data->count = (size_t)read_count; 368 read_data->eof = read_count == 0; 369 370 if (read_count != 0) { 371 read_data->buf_b64 = g_base64_encode(buf, read_count); 372 } 373 } 374 g_free(buf); 375 376 return read_data; 377 } 378 379 GuestFileWrite *qmp_guest_file_write(int64_t handle, const char *buf_b64, 380 bool has_count, int64_t count, 381 Error **errp) 382 { 383 GuestFileWrite *write_data = NULL; 384 guchar *buf; 385 gsize buf_len; 386 bool is_ok; 387 DWORD write_count; 388 GuestFileHandle *gfh = guest_file_handle_find(handle, errp); 389 HANDLE fh; 390 391 if (!gfh) { 392 return NULL; 393 } 394 fh = gfh->fh; 395 buf = qbase64_decode(buf_b64, -1, &buf_len, errp); 396 if (!buf) { 397 return NULL; 398 } 399 400 if (!has_count) { 401 count = buf_len; 402 } else if (count < 0 || count > buf_len) { 403 error_setg(errp, "value '%" PRId64 404 "' is invalid for argument count", count); 405 goto done; 406 } 407 408 is_ok = WriteFile(fh, buf, count, &write_count, NULL); 409 if (!is_ok) { 410 error_setg_win32(errp, GetLastError(), "failed to write to file"); 411 slog("guest-file-write-failed, handle: %" PRId64, handle); 412 } else { 413 write_data = g_new0(GuestFileWrite, 1); 414 write_data->count = (size_t) write_count; 415 } 416 417 done: 418 g_free(buf); 419 return write_data; 420 } 421 422 GuestFileSeek *qmp_guest_file_seek(int64_t handle, int64_t offset, 423 GuestFileWhence *whence_code, 424 Error **errp) 425 { 426 GuestFileHandle *gfh; 427 GuestFileSeek *seek_data; 428 HANDLE fh; 429 LARGE_INTEGER new_pos, off_pos; 430 off_pos.QuadPart = offset; 431 BOOL res; 432 int whence; 433 Error *err = NULL; 434 435 gfh = guest_file_handle_find(handle, errp); 436 if (!gfh) { 437 return NULL; 438 } 439 440 /* We stupidly exposed 'whence':'int' in our qapi */ 441 whence = ga_parse_whence(whence_code, &err); 442 if (err) { 443 error_propagate(errp, err); 444 return NULL; 445 } 446 447 fh = gfh->fh; 448 res = SetFilePointerEx(fh, off_pos, &new_pos, whence); 449 if (!res) { 450 error_setg_win32(errp, GetLastError(), "failed to seek file"); 451 return NULL; 452 } 453 seek_data = g_new0(GuestFileSeek, 1); 454 seek_data->position = new_pos.QuadPart; 455 return seek_data; 456 } 457 458 void qmp_guest_file_flush(int64_t handle, Error **errp) 459 { 460 HANDLE fh; 461 GuestFileHandle *gfh = guest_file_handle_find(handle, errp); 462 if (!gfh) { 463 return; 464 } 465 466 fh = gfh->fh; 467 if (!FlushFileBuffers(fh)) { 468 error_setg_win32(errp, GetLastError(), "failed to flush file"); 469 } 470 } 471 472 static GuestDiskBusType win2qemu[] = { 473 [BusTypeUnknown] = GUEST_DISK_BUS_TYPE_UNKNOWN, 474 [BusTypeScsi] = GUEST_DISK_BUS_TYPE_SCSI, 475 [BusTypeAtapi] = GUEST_DISK_BUS_TYPE_IDE, 476 [BusTypeAta] = GUEST_DISK_BUS_TYPE_IDE, 477 [BusType1394] = GUEST_DISK_BUS_TYPE_IEEE1394, 478 [BusTypeSsa] = GUEST_DISK_BUS_TYPE_SSA, 479 [BusTypeFibre] = GUEST_DISK_BUS_TYPE_SSA, 480 [BusTypeUsb] = GUEST_DISK_BUS_TYPE_USB, 481 [BusTypeRAID] = GUEST_DISK_BUS_TYPE_RAID, 482 [BusTypeiScsi] = GUEST_DISK_BUS_TYPE_ISCSI, 483 [BusTypeSas] = GUEST_DISK_BUS_TYPE_SAS, 484 [BusTypeSata] = GUEST_DISK_BUS_TYPE_SATA, 485 [BusTypeSd] = GUEST_DISK_BUS_TYPE_SD, 486 [BusTypeMmc] = GUEST_DISK_BUS_TYPE_MMC, 487 [BusTypeVirtual] = GUEST_DISK_BUS_TYPE_VIRTUAL, 488 [BusTypeFileBackedVirtual] = GUEST_DISK_BUS_TYPE_FILE_BACKED_VIRTUAL, 489 /* 490 * BusTypeSpaces currently is not supported 491 */ 492 [BusTypeSpaces] = GUEST_DISK_BUS_TYPE_UNKNOWN, 493 [BusTypeNvme] = GUEST_DISK_BUS_TYPE_NVME, 494 }; 495 496 static GuestDiskBusType find_bus_type(STORAGE_BUS_TYPE bus) 497 { 498 if (bus >= ARRAY_SIZE(win2qemu) || (int)bus < 0) { 499 return GUEST_DISK_BUS_TYPE_UNKNOWN; 500 } 501 return win2qemu[(int)bus]; 502 } 503 504 static void get_pci_address_for_device(GuestPCIAddress *pci, 505 HDEVINFO dev_info) 506 { 507 SP_DEVINFO_DATA dev_info_data; 508 DWORD j; 509 DWORD size; 510 bool partial_pci = false; 511 512 dev_info_data.cbSize = sizeof(SP_DEVINFO_DATA); 513 514 for (j = 0; 515 SetupDiEnumDeviceInfo(dev_info, j, &dev_info_data); 516 j++) { 517 DWORD addr, bus, ui_slot, type; 518 int func, slot; 519 size = sizeof(DWORD); 520 521 /* 522 * There is no need to allocate buffer in the next functions. The 523 * size is known and ULONG according to 524 * https://msdn.microsoft.com/en-us/library/windows/hardware/ff543095(v=vs.85).aspx 525 */ 526 if (!SetupDiGetDeviceRegistryProperty( 527 dev_info, &dev_info_data, SPDRP_BUSNUMBER, 528 &type, (PBYTE)&bus, size, NULL)) { 529 debug_error("failed to get PCI bus"); 530 bus = -1; 531 partial_pci = true; 532 } 533 534 /* 535 * The function retrieves the device's address. This value will be 536 * transformed into device function and number 537 */ 538 if (!SetupDiGetDeviceRegistryProperty( 539 dev_info, &dev_info_data, SPDRP_ADDRESS, 540 &type, (PBYTE)&addr, size, NULL)) { 541 debug_error("failed to get PCI address"); 542 addr = -1; 543 partial_pci = true; 544 } 545 546 /* 547 * This call returns UINumber of DEVICE_CAPABILITIES structure. 548 * This number is typically a user-perceived slot number. 549 */ 550 if (!SetupDiGetDeviceRegistryProperty( 551 dev_info, &dev_info_data, SPDRP_UI_NUMBER, 552 &type, (PBYTE)&ui_slot, size, NULL)) { 553 debug_error("failed to get PCI slot"); 554 ui_slot = -1; 555 partial_pci = true; 556 } 557 558 /* 559 * SetupApi gives us the same information as driver with 560 * IoGetDeviceProperty. According to Microsoft: 561 * 562 * FunctionNumber = (USHORT)((propertyAddress) & 0x0000FFFF) 563 * DeviceNumber = (USHORT)(((propertyAddress) >> 16) & 0x0000FFFF) 564 * SPDRP_ADDRESS is propertyAddress, so we do the same. 565 * 566 * https://docs.microsoft.com/en-us/windows/desktop/api/setupapi/nf-setupapi-setupdigetdeviceregistrypropertya 567 */ 568 if (partial_pci) { 569 pci->domain = -1; 570 pci->slot = -1; 571 pci->function = -1; 572 pci->bus = -1; 573 continue; 574 } else { 575 func = ((int)addr == -1) ? -1 : addr & 0x0000FFFF; 576 slot = ((int)addr == -1) ? -1 : (addr >> 16) & 0x0000FFFF; 577 if ((int)ui_slot != slot) { 578 g_debug("mismatch with reported slot values: %d vs %d", 579 (int)ui_slot, slot); 580 } 581 pci->domain = 0; 582 pci->slot = (int)ui_slot; 583 pci->function = func; 584 pci->bus = (int)bus; 585 return; 586 } 587 } 588 } 589 590 static GuestPCIAddress *get_empty_pci_address(void) 591 { 592 GuestPCIAddress *pci = NULL; 593 594 pci = g_malloc0(sizeof(*pci)); 595 pci->domain = -1; 596 pci->slot = -1; 597 pci->function = -1; 598 pci->bus = -1; 599 return pci; 600 } 601 602 static GuestPCIAddress *get_pci_info(int number, Error **errp) 603 { 604 HDEVINFO dev_info = INVALID_HANDLE_VALUE; 605 HDEVINFO parent_dev_info = INVALID_HANDLE_VALUE; 606 607 SP_DEVINFO_DATA dev_info_data; 608 SP_DEVICE_INTERFACE_DATA dev_iface_data; 609 HANDLE dev_file; 610 int i; 611 GuestPCIAddress *pci = get_empty_pci_address(); 612 613 dev_info = SetupDiGetClassDevs(&GUID_DEVINTERFACE_DISK, 0, 0, 614 DIGCF_PRESENT | DIGCF_DEVICEINTERFACE); 615 if (dev_info == INVALID_HANDLE_VALUE) { 616 error_setg_win32(errp, GetLastError(), "failed to get devices tree"); 617 goto end; 618 } 619 620 g_debug("enumerating devices"); 621 dev_info_data.cbSize = sizeof(SP_DEVINFO_DATA); 622 dev_iface_data.cbSize = sizeof(SP_DEVICE_INTERFACE_DATA); 623 for (i = 0; SetupDiEnumDeviceInfo(dev_info, i, &dev_info_data); i++) { 624 g_autofree PSP_DEVICE_INTERFACE_DETAIL_DATA pdev_iface_detail_data = NULL; 625 STORAGE_DEVICE_NUMBER sdn; 626 g_autofree char *parent_dev_id = NULL; 627 SP_DEVINFO_DATA parent_dev_info_data; 628 DWORD size = 0; 629 630 g_debug("getting device path"); 631 if (SetupDiEnumDeviceInterfaces(dev_info, &dev_info_data, 632 &GUID_DEVINTERFACE_DISK, 0, 633 &dev_iface_data)) { 634 if (!SetupDiGetDeviceInterfaceDetail(dev_info, &dev_iface_data, 635 pdev_iface_detail_data, 636 size, &size, 637 &dev_info_data)) { 638 if (GetLastError() == ERROR_INSUFFICIENT_BUFFER) { 639 pdev_iface_detail_data = g_malloc(size); 640 pdev_iface_detail_data->cbSize = 641 sizeof(*pdev_iface_detail_data); 642 } else { 643 error_setg_win32(errp, GetLastError(), 644 "failed to get device interfaces"); 645 goto end; 646 } 647 } 648 649 if (!SetupDiGetDeviceInterfaceDetail(dev_info, &dev_iface_data, 650 pdev_iface_detail_data, 651 size, &size, 652 &dev_info_data)) { 653 // pdev_iface_detail_data already is allocated 654 error_setg_win32(errp, GetLastError(), 655 "failed to get device interfaces"); 656 goto end; 657 } 658 659 dev_file = CreateFile(pdev_iface_detail_data->DevicePath, 0, 660 FILE_SHARE_READ, NULL, OPEN_EXISTING, 0, 661 NULL); 662 663 if (!DeviceIoControl(dev_file, IOCTL_STORAGE_GET_DEVICE_NUMBER, 664 NULL, 0, &sdn, sizeof(sdn), &size, NULL)) { 665 CloseHandle(dev_file); 666 error_setg_win32(errp, GetLastError(), 667 "failed to get device slot number"); 668 goto end; 669 } 670 671 CloseHandle(dev_file); 672 if (sdn.DeviceNumber != number) { 673 continue; 674 } 675 } else { 676 error_setg_win32(errp, GetLastError(), 677 "failed to get device interfaces"); 678 goto end; 679 } 680 681 g_debug("found device slot %d. Getting storage controller", number); 682 { 683 CONFIGRET cr; 684 DEVINST dev_inst, parent_dev_inst; 685 ULONG dev_id_size = 0; 686 687 size = 0; 688 if (!SetupDiGetDeviceInstanceId(dev_info, &dev_info_data, 689 parent_dev_id, size, &size)) { 690 if (GetLastError() == ERROR_INSUFFICIENT_BUFFER) { 691 parent_dev_id = g_malloc(size); 692 } else { 693 error_setg_win32(errp, GetLastError(), 694 "failed to get device instance ID"); 695 goto end; 696 } 697 } 698 699 if (!SetupDiGetDeviceInstanceId(dev_info, &dev_info_data, 700 parent_dev_id, size, &size)) { 701 // parent_dev_id already is allocated 702 error_setg_win32(errp, GetLastError(), 703 "failed to get device instance ID"); 704 goto end; 705 } 706 707 /* 708 * CM API used here as opposed to 709 * SetupDiGetDeviceProperty(..., DEVPKEY_Device_Parent, ...) 710 * which exports are only available in mingw-w64 6+ 711 */ 712 cr = CM_Locate_DevInst(&dev_inst, parent_dev_id, 0); 713 if (cr != CR_SUCCESS) { 714 g_error("CM_Locate_DevInst failed with code %lx", cr); 715 error_setg_win32(errp, GetLastError(), 716 "failed to get device instance"); 717 goto end; 718 } 719 cr = CM_Get_Parent(&parent_dev_inst, dev_inst, 0); 720 if (cr != CR_SUCCESS) { 721 g_error("CM_Get_Parent failed with code %lx", cr); 722 error_setg_win32(errp, GetLastError(), 723 "failed to get parent device instance"); 724 goto end; 725 } 726 727 cr = CM_Get_Device_ID_Size(&dev_id_size, parent_dev_inst, 0); 728 if (cr != CR_SUCCESS) { 729 g_error("CM_Get_Device_ID_Size failed with code %lx", cr); 730 error_setg_win32(errp, GetLastError(), 731 "failed to get parent device ID length"); 732 goto end; 733 } 734 735 ++dev_id_size; 736 if (dev_id_size > size) { 737 g_free(parent_dev_id); 738 parent_dev_id = g_malloc(dev_id_size); 739 } 740 741 cr = CM_Get_Device_ID(parent_dev_inst, parent_dev_id, dev_id_size, 742 0); 743 if (cr != CR_SUCCESS) { 744 g_error("CM_Get_Device_ID failed with code %lx", cr); 745 error_setg_win32(errp, GetLastError(), 746 "failed to get parent device ID"); 747 goto end; 748 } 749 } 750 751 g_debug("querying storage controller %s for PCI information", 752 parent_dev_id); 753 parent_dev_info = 754 SetupDiGetClassDevs(&GUID_DEVINTERFACE_STORAGEPORT, parent_dev_id, 755 NULL, DIGCF_PRESENT | DIGCF_DEVICEINTERFACE); 756 757 if (parent_dev_info == INVALID_HANDLE_VALUE) { 758 error_setg_win32(errp, GetLastError(), 759 "failed to get parent device"); 760 goto end; 761 } 762 763 parent_dev_info_data.cbSize = sizeof(SP_DEVINFO_DATA); 764 if (!SetupDiEnumDeviceInfo(parent_dev_info, 0, &parent_dev_info_data)) { 765 error_setg_win32(errp, GetLastError(), 766 "failed to get parent device data"); 767 goto end; 768 } 769 770 get_pci_address_for_device(pci, parent_dev_info); 771 772 break; 773 } 774 775 end: 776 if (parent_dev_info != INVALID_HANDLE_VALUE) { 777 SetupDiDestroyDeviceInfoList(parent_dev_info); 778 } 779 if (dev_info != INVALID_HANDLE_VALUE) { 780 SetupDiDestroyDeviceInfoList(dev_info); 781 } 782 return pci; 783 } 784 785 static void get_disk_properties(HANDLE vol_h, GuestDiskAddress *disk, 786 Error **errp) 787 { 788 STORAGE_PROPERTY_QUERY query; 789 STORAGE_DEVICE_DESCRIPTOR *dev_desc, buf; 790 DWORD received; 791 ULONG size = sizeof(buf); 792 793 dev_desc = &buf; 794 query.PropertyId = StorageDeviceProperty; 795 query.QueryType = PropertyStandardQuery; 796 797 if (!DeviceIoControl(vol_h, IOCTL_STORAGE_QUERY_PROPERTY, &query, 798 sizeof(STORAGE_PROPERTY_QUERY), dev_desc, 799 size, &received, NULL)) { 800 error_setg_win32(errp, GetLastError(), "failed to get bus type"); 801 return; 802 } 803 disk->bus_type = find_bus_type(dev_desc->BusType); 804 g_debug("bus type %d", disk->bus_type); 805 806 /* Query once more. Now with long enough buffer. */ 807 size = dev_desc->Size; 808 dev_desc = g_malloc0(size); 809 if (!DeviceIoControl(vol_h, IOCTL_STORAGE_QUERY_PROPERTY, &query, 810 sizeof(STORAGE_PROPERTY_QUERY), dev_desc, 811 size, &received, NULL)) { 812 error_setg_win32(errp, GetLastError(), "failed to get serial number"); 813 g_debug("failed to get serial number"); 814 goto out_free; 815 } 816 if (dev_desc->SerialNumberOffset > 0) { 817 const char *serial; 818 size_t len; 819 820 if (dev_desc->SerialNumberOffset >= received) { 821 error_setg(errp, "failed to get serial number: offset outside the buffer"); 822 g_debug("serial number offset outside the buffer"); 823 goto out_free; 824 } 825 serial = (char *)dev_desc + dev_desc->SerialNumberOffset; 826 len = received - dev_desc->SerialNumberOffset; 827 g_debug("serial number \"%s\"", serial); 828 if (*serial != 0) { 829 disk->serial = g_strndup(serial, len); 830 } 831 } 832 out_free: 833 g_free(dev_desc); 834 835 return; 836 } 837 838 static void get_single_disk_info(int disk_number, 839 GuestDiskAddress *disk, Error **errp) 840 { 841 SCSI_ADDRESS addr, *scsi_ad; 842 DWORD len; 843 HANDLE disk_h; 844 Error *local_err = NULL; 845 846 scsi_ad = &addr; 847 848 g_debug("getting disk info for: %s", disk->dev); 849 disk_h = CreateFile(disk->dev, 0, FILE_SHARE_READ, NULL, OPEN_EXISTING, 850 0, NULL); 851 if (disk_h == INVALID_HANDLE_VALUE) { 852 error_setg_win32(errp, GetLastError(), "failed to open disk"); 853 return; 854 } 855 856 get_disk_properties(disk_h, disk, &local_err); 857 if (local_err) { 858 error_propagate(errp, local_err); 859 goto err_close; 860 } 861 862 g_debug("bus type %d", disk->bus_type); 863 /* always set pci_controller as required by schema. get_pci_info() should 864 * report -1 values for non-PCI buses rather than fail. fail the command 865 * if that doesn't hold since that suggests some other unexpected 866 * breakage 867 */ 868 if (disk->bus_type == GUEST_DISK_BUS_TYPE_USB) { 869 disk->pci_controller = get_empty_pci_address(); 870 } else { 871 disk->pci_controller = get_pci_info(disk_number, &local_err); 872 if (local_err) { 873 error_propagate(errp, local_err); 874 goto err_close; 875 } 876 } 877 if (disk->bus_type == GUEST_DISK_BUS_TYPE_SCSI 878 || disk->bus_type == GUEST_DISK_BUS_TYPE_IDE 879 || disk->bus_type == GUEST_DISK_BUS_TYPE_RAID 880 /* This bus type is not supported before Windows Server 2003 SP1 */ 881 || disk->bus_type == GUEST_DISK_BUS_TYPE_SAS 882 ) { 883 /* We are able to use the same ioctls for different bus types 884 * according to Microsoft docs 885 * https://technet.microsoft.com/en-us/library/ee851589(v=ws.10).aspx */ 886 g_debug("getting SCSI info"); 887 if (DeviceIoControl(disk_h, IOCTL_SCSI_GET_ADDRESS, NULL, 0, scsi_ad, 888 sizeof(SCSI_ADDRESS), &len, NULL)) { 889 disk->unit = addr.Lun; 890 disk->target = addr.TargetId; 891 disk->bus = addr.PathId; 892 } 893 /* We do not set error in this case, because we still have enough 894 * information about volume. */ 895 } 896 897 err_close: 898 CloseHandle(disk_h); 899 return; 900 } 901 902 /* VSS provider works with volumes, thus there is no difference if 903 * the volume consist of spanned disks. Info about the first disk in the 904 * volume is returned for the spanned disk group (LVM) */ 905 static GuestDiskAddressList *build_guest_disk_info(char *guid, Error **errp) 906 { 907 Error *local_err = NULL; 908 GuestDiskAddressList *list = NULL; 909 GuestDiskAddress *disk = NULL; 910 int i; 911 HANDLE vol_h; 912 DWORD size; 913 PVOLUME_DISK_EXTENTS extents = NULL; 914 915 /* strip final backslash */ 916 char *name = g_strdup(guid); 917 if (g_str_has_suffix(name, "\\")) { 918 name[strlen(name) - 1] = 0; 919 } 920 921 g_debug("opening %s", name); 922 vol_h = CreateFile(name, 0, FILE_SHARE_READ, NULL, OPEN_EXISTING, 923 0, NULL); 924 if (vol_h == INVALID_HANDLE_VALUE) { 925 error_setg_win32(errp, GetLastError(), "failed to open volume"); 926 goto out; 927 } 928 929 /* Get list of extents */ 930 g_debug("getting disk extents"); 931 size = sizeof(VOLUME_DISK_EXTENTS); 932 extents = g_malloc0(size); 933 if (!DeviceIoControl(vol_h, IOCTL_VOLUME_GET_VOLUME_DISK_EXTENTS, NULL, 934 0, extents, size, &size, NULL)) { 935 DWORD last_err = GetLastError(); 936 if (last_err == ERROR_MORE_DATA) { 937 /* Try once more with big enough buffer */ 938 size = sizeof(VOLUME_DISK_EXTENTS) + 939 (sizeof(DISK_EXTENT) * (extents->NumberOfDiskExtents - 1)); 940 g_free(extents); 941 extents = g_malloc0(size); 942 if (!DeviceIoControl( 943 vol_h, IOCTL_VOLUME_GET_VOLUME_DISK_EXTENTS, NULL, 944 0, extents, size, NULL, NULL)) { 945 error_setg_win32(errp, GetLastError(), 946 "failed to get disk extents"); 947 goto out; 948 } 949 } else if (last_err == ERROR_INVALID_FUNCTION) { 950 /* Possibly CD-ROM or a shared drive. Try to pass the volume */ 951 g_debug("volume not on disk"); 952 disk = g_new0(GuestDiskAddress, 1); 953 disk->dev = g_strdup(name); 954 get_single_disk_info(0xffffffff, disk, &local_err); 955 if (local_err) { 956 g_debug("failed to get disk info, ignoring error: %s", 957 error_get_pretty(local_err)); 958 error_free(local_err); 959 goto out; 960 } 961 QAPI_LIST_PREPEND(list, disk); 962 disk = NULL; 963 goto out; 964 } else { 965 error_setg_win32(errp, GetLastError(), 966 "failed to get disk extents"); 967 goto out; 968 } 969 } 970 g_debug("Number of extents: %lu", extents->NumberOfDiskExtents); 971 972 /* Go through each extent */ 973 for (i = 0; i < extents->NumberOfDiskExtents; i++) { 974 disk = g_new0(GuestDiskAddress, 1); 975 976 /* Disk numbers directly correspond to numbers used in UNCs 977 * 978 * See documentation for DISK_EXTENT: 979 * https://docs.microsoft.com/en-us/windows/desktop/api/winioctl/ns-winioctl-_disk_extent 980 * 981 * See also Naming Files, Paths and Namespaces: 982 * https://docs.microsoft.com/en-us/windows/desktop/FileIO/naming-a-file#win32-device-namespaces 983 */ 984 disk->dev = g_strdup_printf("\\\\.\\PhysicalDrive%lu", 985 extents->Extents[i].DiskNumber); 986 987 get_single_disk_info(extents->Extents[i].DiskNumber, disk, &local_err); 988 if (local_err) { 989 error_propagate(errp, local_err); 990 goto out; 991 } 992 QAPI_LIST_PREPEND(list, disk); 993 disk = NULL; 994 } 995 996 997 out: 998 if (vol_h != INVALID_HANDLE_VALUE) { 999 CloseHandle(vol_h); 1000 } 1001 qapi_free_GuestDiskAddress(disk); 1002 g_free(extents); 1003 g_free(name); 1004 1005 return list; 1006 } 1007 1008 GuestDiskInfoList *qmp_guest_get_disks(Error **errp) 1009 { 1010 GuestDiskInfoList *ret = NULL; 1011 HDEVINFO dev_info; 1012 SP_DEVICE_INTERFACE_DATA dev_iface_data; 1013 int i; 1014 1015 dev_info = SetupDiGetClassDevs(&GUID_DEVINTERFACE_DISK, 0, 0, 1016 DIGCF_PRESENT | DIGCF_DEVICEINTERFACE); 1017 if (dev_info == INVALID_HANDLE_VALUE) { 1018 error_setg_win32(errp, GetLastError(), "failed to get device tree"); 1019 return NULL; 1020 } 1021 1022 g_debug("enumerating devices"); 1023 dev_iface_data.cbSize = sizeof(SP_DEVICE_INTERFACE_DATA); 1024 for (i = 0; 1025 SetupDiEnumDeviceInterfaces(dev_info, NULL, &GUID_DEVINTERFACE_DISK, 1026 i, &dev_iface_data); 1027 i++) { 1028 GuestDiskAddress *address = NULL; 1029 GuestDiskInfo *disk = NULL; 1030 Error *local_err = NULL; 1031 g_autofree PSP_DEVICE_INTERFACE_DETAIL_DATA 1032 pdev_iface_detail_data = NULL; 1033 STORAGE_DEVICE_NUMBER sdn; 1034 HANDLE dev_file; 1035 DWORD size = 0; 1036 BOOL result; 1037 int attempt; 1038 1039 g_debug(" getting device path"); 1040 for (attempt = 0, result = FALSE; attempt < 2 && !result; attempt++) { 1041 result = SetupDiGetDeviceInterfaceDetail(dev_info, 1042 &dev_iface_data, pdev_iface_detail_data, size, &size, NULL); 1043 if (result) { 1044 break; 1045 } 1046 if (GetLastError() == ERROR_INSUFFICIENT_BUFFER) { 1047 pdev_iface_detail_data = g_realloc(pdev_iface_detail_data, 1048 size); 1049 pdev_iface_detail_data->cbSize = 1050 sizeof(*pdev_iface_detail_data); 1051 } else { 1052 g_debug("failed to get device interface details"); 1053 break; 1054 } 1055 } 1056 if (!result) { 1057 g_debug("skipping device"); 1058 continue; 1059 } 1060 1061 g_debug(" device: %s", pdev_iface_detail_data->DevicePath); 1062 dev_file = CreateFile(pdev_iface_detail_data->DevicePath, 0, 1063 FILE_SHARE_READ, NULL, OPEN_EXISTING, 0, NULL); 1064 if (!DeviceIoControl(dev_file, IOCTL_STORAGE_GET_DEVICE_NUMBER, 1065 NULL, 0, &sdn, sizeof(sdn), &size, NULL)) { 1066 CloseHandle(dev_file); 1067 debug_error("failed to get storage device number"); 1068 continue; 1069 } 1070 CloseHandle(dev_file); 1071 1072 disk = g_new0(GuestDiskInfo, 1); 1073 disk->name = g_strdup_printf("\\\\.\\PhysicalDrive%lu", 1074 sdn.DeviceNumber); 1075 1076 g_debug(" number: %lu", sdn.DeviceNumber); 1077 address = g_new0(GuestDiskAddress, 1); 1078 address->dev = g_strdup(disk->name); 1079 get_single_disk_info(sdn.DeviceNumber, address, &local_err); 1080 if (local_err) { 1081 g_debug("failed to get disk info: %s", 1082 error_get_pretty(local_err)); 1083 error_free(local_err); 1084 qapi_free_GuestDiskAddress(address); 1085 address = NULL; 1086 } else { 1087 disk->address = address; 1088 } 1089 1090 QAPI_LIST_PREPEND(ret, disk); 1091 } 1092 1093 SetupDiDestroyDeviceInfoList(dev_info); 1094 return ret; 1095 } 1096 1097 static GuestFilesystemInfo *build_guest_fsinfo(char *guid, Error **errp) 1098 { 1099 DWORD info_size; 1100 char mnt, *mnt_point; 1101 wchar_t wfs_name[32]; 1102 char fs_name[32]; 1103 wchar_t vol_info[MAX_PATH + 1]; 1104 size_t len; 1105 uint64_t i64FreeBytesToCaller, i64TotalBytes, i64FreeBytes; 1106 GuestFilesystemInfo *fs = NULL; 1107 HANDLE hLocalDiskHandle = INVALID_HANDLE_VALUE; 1108 1109 GetVolumePathNamesForVolumeName(guid, (LPCH)&mnt, 0, &info_size); 1110 if (GetLastError() != ERROR_MORE_DATA) { 1111 error_setg_win32(errp, GetLastError(), "failed to get volume name"); 1112 return NULL; 1113 } 1114 1115 mnt_point = g_malloc(info_size + 1); 1116 if (!GetVolumePathNamesForVolumeName(guid, mnt_point, info_size, 1117 &info_size)) { 1118 error_setg_win32(errp, GetLastError(), "failed to get volume name"); 1119 goto free; 1120 } 1121 1122 hLocalDiskHandle = CreateFile(guid, 0 , 0, NULL, OPEN_EXISTING, 1123 FILE_ATTRIBUTE_NORMAL | 1124 FILE_FLAG_BACKUP_SEMANTICS, NULL); 1125 if (INVALID_HANDLE_VALUE == hLocalDiskHandle) { 1126 error_setg_win32(errp, GetLastError(), "failed to get handle for volume"); 1127 goto free; 1128 } 1129 1130 len = strlen(mnt_point); 1131 mnt_point[len] = '\\'; 1132 mnt_point[len + 1] = 0; 1133 1134 if (!GetVolumeInformationByHandleW(hLocalDiskHandle, vol_info, 1135 sizeof(vol_info), NULL, NULL, NULL, 1136 (LPWSTR) & wfs_name, sizeof(wfs_name))) { 1137 if (GetLastError() != ERROR_NOT_READY) { 1138 error_setg_win32(errp, GetLastError(), "failed to get volume info"); 1139 } 1140 goto free; 1141 } 1142 1143 fs = g_malloc(sizeof(*fs)); 1144 fs->name = g_strdup(guid); 1145 fs->has_total_bytes = false; 1146 fs->has_used_bytes = false; 1147 if (len == 0) { 1148 fs->mountpoint = g_strdup("System Reserved"); 1149 } else { 1150 fs->mountpoint = g_strndup(mnt_point, len); 1151 if (GetDiskFreeSpaceEx(fs->mountpoint, 1152 (PULARGE_INTEGER) & i64FreeBytesToCaller, 1153 (PULARGE_INTEGER) & i64TotalBytes, 1154 (PULARGE_INTEGER) & i64FreeBytes)) { 1155 fs->used_bytes = i64TotalBytes - i64FreeBytes; 1156 fs->total_bytes = i64TotalBytes; 1157 fs->has_total_bytes = true; 1158 fs->has_used_bytes = true; 1159 } 1160 } 1161 wcstombs(fs_name, wfs_name, sizeof(wfs_name)); 1162 fs->type = g_strdup(fs_name); 1163 fs->disk = build_guest_disk_info(guid, errp); 1164 free: 1165 if (hLocalDiskHandle != INVALID_HANDLE_VALUE) { 1166 CloseHandle(hLocalDiskHandle); 1167 } 1168 g_free(mnt_point); 1169 return fs; 1170 } 1171 1172 GuestFilesystemInfoList *qmp_guest_get_fsinfo(Error **errp) 1173 { 1174 HANDLE vol_h; 1175 GuestFilesystemInfoList *ret = NULL; 1176 char guid[256]; 1177 1178 vol_h = FindFirstVolume(guid, sizeof(guid)); 1179 if (vol_h == INVALID_HANDLE_VALUE) { 1180 error_setg_win32(errp, GetLastError(), "failed to find any volume"); 1181 return NULL; 1182 } 1183 1184 do { 1185 Error *local_err = NULL; 1186 GuestFilesystemInfo *info = build_guest_fsinfo(guid, &local_err); 1187 if (local_err) { 1188 g_debug("failed to get filesystem info, ignoring error: %s", 1189 error_get_pretty(local_err)); 1190 error_free(local_err); 1191 continue; 1192 } 1193 QAPI_LIST_PREPEND(ret, info); 1194 } while (FindNextVolume(vol_h, guid, sizeof(guid))); 1195 1196 if (GetLastError() != ERROR_NO_MORE_FILES) { 1197 error_setg_win32(errp, GetLastError(), "failed to find next volume"); 1198 } 1199 1200 FindVolumeClose(vol_h); 1201 return ret; 1202 } 1203 1204 /* 1205 * Return status of freeze/thaw 1206 */ 1207 GuestFsfreezeStatus qmp_guest_fsfreeze_status(Error **errp) 1208 { 1209 if (!vss_initialized()) { 1210 error_setg(errp, QERR_UNSUPPORTED); 1211 return 0; 1212 } 1213 1214 if (ga_is_frozen(ga_state)) { 1215 return GUEST_FSFREEZE_STATUS_FROZEN; 1216 } 1217 1218 return GUEST_FSFREEZE_STATUS_THAWED; 1219 } 1220 1221 /* 1222 * Freeze local file systems using Volume Shadow-copy Service. 1223 * The frozen state is limited for up to 10 seconds by VSS. 1224 */ 1225 int64_t qmp_guest_fsfreeze_freeze(Error **errp) 1226 { 1227 return qmp_guest_fsfreeze_freeze_list(false, NULL, errp); 1228 } 1229 1230 int64_t qmp_guest_fsfreeze_freeze_list(bool has_mountpoints, 1231 strList *mountpoints, 1232 Error **errp) 1233 { 1234 int i; 1235 Error *local_err = NULL; 1236 1237 if (!vss_initialized()) { 1238 error_setg(errp, QERR_UNSUPPORTED); 1239 return 0; 1240 } 1241 1242 slog("guest-fsfreeze called"); 1243 1244 /* cannot risk guest agent blocking itself on a write in this state */ 1245 ga_set_frozen(ga_state); 1246 1247 qga_vss_fsfreeze(&i, true, mountpoints, &local_err); 1248 if (local_err) { 1249 error_propagate(errp, local_err); 1250 goto error; 1251 } 1252 1253 return i; 1254 1255 error: 1256 local_err = NULL; 1257 qmp_guest_fsfreeze_thaw(&local_err); 1258 if (local_err) { 1259 g_debug("cleanup thaw: %s", error_get_pretty(local_err)); 1260 error_free(local_err); 1261 } 1262 return 0; 1263 } 1264 1265 /* 1266 * Thaw local file systems using Volume Shadow-copy Service. 1267 */ 1268 int64_t qmp_guest_fsfreeze_thaw(Error **errp) 1269 { 1270 int i; 1271 1272 if (!vss_initialized()) { 1273 error_setg(errp, QERR_UNSUPPORTED); 1274 return 0; 1275 } 1276 1277 qga_vss_fsfreeze(&i, false, NULL, errp); 1278 1279 ga_unset_frozen(ga_state); 1280 return i; 1281 } 1282 1283 static void guest_fsfreeze_cleanup(void) 1284 { 1285 Error *err = NULL; 1286 1287 if (!vss_initialized()) { 1288 return; 1289 } 1290 1291 if (ga_is_frozen(ga_state) == GUEST_FSFREEZE_STATUS_FROZEN) { 1292 qmp_guest_fsfreeze_thaw(&err); 1293 if (err) { 1294 slog("failed to clean up frozen filesystems: %s", 1295 error_get_pretty(err)); 1296 error_free(err); 1297 } 1298 } 1299 1300 vss_deinit(true); 1301 } 1302 1303 /* 1304 * Walk list of mounted file systems in the guest, and discard unused 1305 * areas. 1306 */ 1307 GuestFilesystemTrimResponse * 1308 qmp_guest_fstrim(bool has_minimum, int64_t minimum, Error **errp) 1309 { 1310 GuestFilesystemTrimResponse *resp; 1311 HANDLE handle; 1312 WCHAR guid[MAX_PATH] = L""; 1313 OSVERSIONINFO osvi; 1314 BOOL win8_or_later; 1315 1316 ZeroMemory(&osvi, sizeof(OSVERSIONINFO)); 1317 osvi.dwOSVersionInfoSize = sizeof(OSVERSIONINFO); 1318 GetVersionEx(&osvi); 1319 win8_or_later = (osvi.dwMajorVersion > 6 || 1320 ((osvi.dwMajorVersion == 6) && 1321 (osvi.dwMinorVersion >= 2))); 1322 if (!win8_or_later) { 1323 error_setg(errp, "fstrim is only supported for Win8+"); 1324 return NULL; 1325 } 1326 1327 handle = FindFirstVolumeW(guid, ARRAYSIZE(guid)); 1328 if (handle == INVALID_HANDLE_VALUE) { 1329 error_setg_win32(errp, GetLastError(), "failed to find any volume"); 1330 return NULL; 1331 } 1332 1333 resp = g_new0(GuestFilesystemTrimResponse, 1); 1334 1335 do { 1336 GuestFilesystemTrimResult *res; 1337 PWCHAR uc_path; 1338 DWORD char_count = 0; 1339 char *path, *out; 1340 GError *gerr = NULL; 1341 gchar *argv[4]; 1342 1343 GetVolumePathNamesForVolumeNameW(guid, NULL, 0, &char_count); 1344 1345 if (GetLastError() != ERROR_MORE_DATA) { 1346 continue; 1347 } 1348 if (GetDriveTypeW(guid) != DRIVE_FIXED) { 1349 continue; 1350 } 1351 1352 uc_path = g_new(WCHAR, char_count); 1353 if (!GetVolumePathNamesForVolumeNameW(guid, uc_path, char_count, 1354 &char_count) || !*uc_path) { 1355 /* strange, but this condition could be faced even with size == 2 */ 1356 g_free(uc_path); 1357 continue; 1358 } 1359 1360 res = g_new0(GuestFilesystemTrimResult, 1); 1361 1362 path = g_utf16_to_utf8(uc_path, char_count, NULL, NULL, &gerr); 1363 1364 g_free(uc_path); 1365 1366 if (!path) { 1367 res->error = g_strdup(gerr->message); 1368 g_error_free(gerr); 1369 break; 1370 } 1371 1372 res->path = path; 1373 1374 QAPI_LIST_PREPEND(resp->paths, res); 1375 1376 memset(argv, 0, sizeof(argv)); 1377 argv[0] = (gchar *)"defrag.exe"; 1378 argv[1] = (gchar *)"/L"; 1379 argv[2] = path; 1380 1381 if (!g_spawn_sync(NULL, argv, NULL, G_SPAWN_SEARCH_PATH, NULL, NULL, 1382 &out /* stdout */, NULL /* stdin */, 1383 NULL, &gerr)) { 1384 res->error = g_strdup(gerr->message); 1385 g_error_free(gerr); 1386 } else { 1387 /* defrag.exe is UGLY. Exit code is ALWAYS zero. 1388 Error is reported in the output with something like 1389 (x89000020) etc code in the stdout */ 1390 1391 int i; 1392 gchar **lines = g_strsplit(out, "\r\n", 0); 1393 g_free(out); 1394 1395 for (i = 0; lines[i] != NULL; i++) { 1396 if (g_strstr_len(lines[i], -1, "(0x") == NULL) { 1397 continue; 1398 } 1399 res->error = g_strdup(lines[i]); 1400 break; 1401 } 1402 g_strfreev(lines); 1403 } 1404 } while (FindNextVolumeW(handle, guid, ARRAYSIZE(guid))); 1405 1406 FindVolumeClose(handle); 1407 return resp; 1408 } 1409 1410 typedef enum { 1411 GUEST_SUSPEND_MODE_DISK, 1412 GUEST_SUSPEND_MODE_RAM 1413 } GuestSuspendMode; 1414 1415 static void check_suspend_mode(GuestSuspendMode mode, Error **errp) 1416 { 1417 SYSTEM_POWER_CAPABILITIES sys_pwr_caps; 1418 1419 ZeroMemory(&sys_pwr_caps, sizeof(sys_pwr_caps)); 1420 if (!GetPwrCapabilities(&sys_pwr_caps)) { 1421 error_setg(errp, QERR_QGA_COMMAND_FAILED, 1422 "failed to determine guest suspend capabilities"); 1423 return; 1424 } 1425 1426 switch (mode) { 1427 case GUEST_SUSPEND_MODE_DISK: 1428 if (!sys_pwr_caps.SystemS4) { 1429 error_setg(errp, QERR_QGA_COMMAND_FAILED, 1430 "suspend-to-disk not supported by OS"); 1431 } 1432 break; 1433 case GUEST_SUSPEND_MODE_RAM: 1434 if (!sys_pwr_caps.SystemS3) { 1435 error_setg(errp, QERR_QGA_COMMAND_FAILED, 1436 "suspend-to-ram not supported by OS"); 1437 } 1438 break; 1439 default: 1440 abort(); 1441 } 1442 } 1443 1444 static DWORD WINAPI do_suspend(LPVOID opaque) 1445 { 1446 GuestSuspendMode *mode = opaque; 1447 DWORD ret = 0; 1448 1449 if (!SetSuspendState(*mode == GUEST_SUSPEND_MODE_DISK, TRUE, TRUE)) { 1450 g_autofree gchar *emsg = g_win32_error_message(GetLastError()); 1451 slog("failed to suspend guest: %s", emsg); 1452 ret = -1; 1453 } 1454 g_free(mode); 1455 return ret; 1456 } 1457 1458 void qmp_guest_suspend_disk(Error **errp) 1459 { 1460 Error *local_err = NULL; 1461 GuestSuspendMode *mode = g_new(GuestSuspendMode, 1); 1462 1463 *mode = GUEST_SUSPEND_MODE_DISK; 1464 check_suspend_mode(*mode, &local_err); 1465 if (local_err) { 1466 goto out; 1467 } 1468 acquire_privilege(SE_SHUTDOWN_NAME, &local_err); 1469 if (local_err) { 1470 goto out; 1471 } 1472 execute_async(do_suspend, mode, &local_err); 1473 1474 out: 1475 if (local_err) { 1476 error_propagate(errp, local_err); 1477 g_free(mode); 1478 } 1479 } 1480 1481 void qmp_guest_suspend_ram(Error **errp) 1482 { 1483 Error *local_err = NULL; 1484 GuestSuspendMode *mode = g_new(GuestSuspendMode, 1); 1485 1486 *mode = GUEST_SUSPEND_MODE_RAM; 1487 check_suspend_mode(*mode, &local_err); 1488 if (local_err) { 1489 goto out; 1490 } 1491 acquire_privilege(SE_SHUTDOWN_NAME, &local_err); 1492 if (local_err) { 1493 goto out; 1494 } 1495 execute_async(do_suspend, mode, &local_err); 1496 1497 out: 1498 if (local_err) { 1499 error_propagate(errp, local_err); 1500 g_free(mode); 1501 } 1502 } 1503 1504 void qmp_guest_suspend_hybrid(Error **errp) 1505 { 1506 error_setg(errp, QERR_UNSUPPORTED); 1507 } 1508 1509 static IP_ADAPTER_ADDRESSES *guest_get_adapters_addresses(Error **errp) 1510 { 1511 IP_ADAPTER_ADDRESSES *adptr_addrs = NULL; 1512 ULONG adptr_addrs_len = 0; 1513 DWORD ret; 1514 1515 /* Call the first time to get the adptr_addrs_len. */ 1516 GetAdaptersAddresses(AF_UNSPEC, GAA_FLAG_INCLUDE_PREFIX, 1517 NULL, adptr_addrs, &adptr_addrs_len); 1518 1519 adptr_addrs = g_malloc(adptr_addrs_len); 1520 ret = GetAdaptersAddresses(AF_UNSPEC, GAA_FLAG_INCLUDE_PREFIX, 1521 NULL, adptr_addrs, &adptr_addrs_len); 1522 if (ret != ERROR_SUCCESS) { 1523 error_setg_win32(errp, ret, "failed to get adapters addresses"); 1524 g_free(adptr_addrs); 1525 adptr_addrs = NULL; 1526 } 1527 return adptr_addrs; 1528 } 1529 1530 static char *guest_wctomb_dup(WCHAR *wstr) 1531 { 1532 char *str; 1533 size_t str_size; 1534 1535 str_size = WideCharToMultiByte(CP_UTF8, 0, wstr, -1, NULL, 0, NULL, NULL); 1536 /* add 1 to str_size for NULL terminator */ 1537 str = g_malloc(str_size + 1); 1538 WideCharToMultiByte(CP_UTF8, 0, wstr, -1, str, str_size, NULL, NULL); 1539 return str; 1540 } 1541 1542 static char *guest_addr_to_str(IP_ADAPTER_UNICAST_ADDRESS *ip_addr, 1543 Error **errp) 1544 { 1545 char addr_str[INET6_ADDRSTRLEN + INET_ADDRSTRLEN]; 1546 DWORD len; 1547 int ret; 1548 1549 if (ip_addr->Address.lpSockaddr->sa_family == AF_INET || 1550 ip_addr->Address.lpSockaddr->sa_family == AF_INET6) { 1551 len = sizeof(addr_str); 1552 ret = WSAAddressToString(ip_addr->Address.lpSockaddr, 1553 ip_addr->Address.iSockaddrLength, 1554 NULL, 1555 addr_str, 1556 &len); 1557 if (ret != 0) { 1558 error_setg_win32(errp, WSAGetLastError(), 1559 "failed address presentation form conversion"); 1560 return NULL; 1561 } 1562 return g_strdup(addr_str); 1563 } 1564 return NULL; 1565 } 1566 1567 static int64_t guest_ip_prefix(IP_ADAPTER_UNICAST_ADDRESS *ip_addr) 1568 { 1569 /* For Windows Vista/2008 and newer, use the OnLinkPrefixLength 1570 * field to obtain the prefix. 1571 */ 1572 return ip_addr->OnLinkPrefixLength; 1573 } 1574 1575 #define INTERFACE_PATH_BUF_SZ 512 1576 1577 static DWORD get_interface_index(const char *guid) 1578 { 1579 ULONG index; 1580 DWORD status; 1581 wchar_t wbuf[INTERFACE_PATH_BUF_SZ]; 1582 snwprintf(wbuf, INTERFACE_PATH_BUF_SZ, L"\\device\\tcpip_%s", guid); 1583 wbuf[INTERFACE_PATH_BUF_SZ - 1] = 0; 1584 status = GetAdapterIndex (wbuf, &index); 1585 if (status != NO_ERROR) { 1586 return (DWORD)~0; 1587 } else { 1588 return index; 1589 } 1590 } 1591 1592 typedef NETIOAPI_API (WINAPI *GetIfEntry2Func)(PMIB_IF_ROW2 Row); 1593 1594 static int guest_get_network_stats(const char *name, 1595 GuestNetworkInterfaceStat *stats) 1596 { 1597 OSVERSIONINFO os_ver; 1598 1599 os_ver.dwOSVersionInfoSize = sizeof(OSVERSIONINFO); 1600 GetVersionEx(&os_ver); 1601 if (os_ver.dwMajorVersion >= 6) { 1602 MIB_IF_ROW2 a_mid_ifrow; 1603 GetIfEntry2Func getifentry2_ex; 1604 DWORD if_index = 0; 1605 HMODULE module = GetModuleHandle("iphlpapi"); 1606 PVOID func = GetProcAddress(module, "GetIfEntry2"); 1607 1608 if (func == NULL) { 1609 return -1; 1610 } 1611 1612 getifentry2_ex = (GetIfEntry2Func)func; 1613 if_index = get_interface_index(name); 1614 if (if_index == (DWORD)~0) { 1615 return -1; 1616 } 1617 1618 memset(&a_mid_ifrow, 0, sizeof(a_mid_ifrow)); 1619 a_mid_ifrow.InterfaceIndex = if_index; 1620 if (NO_ERROR == getifentry2_ex(&a_mid_ifrow)) { 1621 stats->rx_bytes = a_mid_ifrow.InOctets; 1622 stats->rx_packets = a_mid_ifrow.InUcastPkts; 1623 stats->rx_errs = a_mid_ifrow.InErrors; 1624 stats->rx_dropped = a_mid_ifrow.InDiscards; 1625 stats->tx_bytes = a_mid_ifrow.OutOctets; 1626 stats->tx_packets = a_mid_ifrow.OutUcastPkts; 1627 stats->tx_errs = a_mid_ifrow.OutErrors; 1628 stats->tx_dropped = a_mid_ifrow.OutDiscards; 1629 return 0; 1630 } 1631 } 1632 return -1; 1633 } 1634 1635 GuestNetworkInterfaceList *qmp_guest_network_get_interfaces(Error **errp) 1636 { 1637 IP_ADAPTER_ADDRESSES *adptr_addrs, *addr; 1638 IP_ADAPTER_UNICAST_ADDRESS *ip_addr = NULL; 1639 GuestNetworkInterfaceList *head = NULL, **tail = &head; 1640 GuestIpAddressList *head_addr, **tail_addr; 1641 GuestNetworkInterface *info; 1642 GuestNetworkInterfaceStat *interface_stat = NULL; 1643 GuestIpAddress *address_item = NULL; 1644 unsigned char *mac_addr; 1645 char *addr_str; 1646 WORD wsa_version; 1647 WSADATA wsa_data; 1648 int ret; 1649 1650 adptr_addrs = guest_get_adapters_addresses(errp); 1651 if (adptr_addrs == NULL) { 1652 return NULL; 1653 } 1654 1655 /* Make WSA APIs available. */ 1656 wsa_version = MAKEWORD(2, 2); 1657 ret = WSAStartup(wsa_version, &wsa_data); 1658 if (ret != 0) { 1659 error_setg_win32(errp, ret, "failed socket startup"); 1660 goto out; 1661 } 1662 1663 for (addr = adptr_addrs; addr; addr = addr->Next) { 1664 info = g_malloc0(sizeof(*info)); 1665 1666 QAPI_LIST_APPEND(tail, info); 1667 1668 info->name = guest_wctomb_dup(addr->FriendlyName); 1669 1670 if (addr->PhysicalAddressLength != 0) { 1671 mac_addr = addr->PhysicalAddress; 1672 1673 info->hardware_address = 1674 g_strdup_printf("%02x:%02x:%02x:%02x:%02x:%02x", 1675 (int) mac_addr[0], (int) mac_addr[1], 1676 (int) mac_addr[2], (int) mac_addr[3], 1677 (int) mac_addr[4], (int) mac_addr[5]); 1678 } 1679 1680 head_addr = NULL; 1681 tail_addr = &head_addr; 1682 for (ip_addr = addr->FirstUnicastAddress; 1683 ip_addr; 1684 ip_addr = ip_addr->Next) { 1685 addr_str = guest_addr_to_str(ip_addr, errp); 1686 if (addr_str == NULL) { 1687 continue; 1688 } 1689 1690 address_item = g_malloc0(sizeof(*address_item)); 1691 1692 QAPI_LIST_APPEND(tail_addr, address_item); 1693 1694 address_item->ip_address = addr_str; 1695 address_item->prefix = guest_ip_prefix(ip_addr); 1696 if (ip_addr->Address.lpSockaddr->sa_family == AF_INET) { 1697 address_item->ip_address_type = GUEST_IP_ADDRESS_TYPE_IPV4; 1698 } else if (ip_addr->Address.lpSockaddr->sa_family == AF_INET6) { 1699 address_item->ip_address_type = GUEST_IP_ADDRESS_TYPE_IPV6; 1700 } 1701 } 1702 if (head_addr) { 1703 info->has_ip_addresses = true; 1704 info->ip_addresses = head_addr; 1705 } 1706 if (!info->statistics) { 1707 interface_stat = g_malloc0(sizeof(*interface_stat)); 1708 if (guest_get_network_stats(addr->AdapterName, interface_stat) 1709 == -1) { 1710 g_free(interface_stat); 1711 } else { 1712 info->statistics = interface_stat; 1713 } 1714 } 1715 } 1716 WSACleanup(); 1717 out: 1718 g_free(adptr_addrs); 1719 return head; 1720 } 1721 1722 static int64_t filetime_to_ns(const FILETIME *tf) 1723 { 1724 return ((((int64_t)tf->dwHighDateTime << 32) | tf->dwLowDateTime) 1725 - W32_FT_OFFSET) * 100; 1726 } 1727 1728 void qmp_guest_set_time(bool has_time, int64_t time_ns, Error **errp) 1729 { 1730 Error *local_err = NULL; 1731 SYSTEMTIME ts; 1732 FILETIME tf; 1733 LONGLONG time; 1734 1735 if (!has_time) { 1736 /* Unfortunately, Windows libraries don't provide an easy way to access 1737 * RTC yet: 1738 * 1739 * https://msdn.microsoft.com/en-us/library/aa908981.aspx 1740 * 1741 * Instead, a workaround is to use the Windows win32tm command to 1742 * resync the time using the Windows Time service. 1743 */ 1744 LPVOID msg_buffer; 1745 DWORD ret_flags; 1746 1747 HRESULT hr = system("w32tm /resync /nowait"); 1748 1749 if (GetLastError() != 0) { 1750 strerror_s((LPTSTR) & msg_buffer, 0, errno); 1751 error_setg(errp, "system(...) failed: %s", (LPCTSTR)msg_buffer); 1752 } else if (hr != 0) { 1753 if (hr == HRESULT_FROM_WIN32(ERROR_SERVICE_NOT_ACTIVE)) { 1754 error_setg(errp, "Windows Time service not running on the " 1755 "guest"); 1756 } else { 1757 if (!FormatMessage(FORMAT_MESSAGE_ALLOCATE_BUFFER | 1758 FORMAT_MESSAGE_FROM_SYSTEM | 1759 FORMAT_MESSAGE_IGNORE_INSERTS, NULL, 1760 (DWORD)hr, MAKELANGID(LANG_NEUTRAL, 1761 SUBLANG_DEFAULT), (LPTSTR) & msg_buffer, 0, 1762 NULL)) { 1763 error_setg(errp, "w32tm failed with error (0x%lx), couldn'" 1764 "t retrieve error message", hr); 1765 } else { 1766 error_setg(errp, "w32tm failed with error (0x%lx): %s", hr, 1767 (LPCTSTR)msg_buffer); 1768 LocalFree(msg_buffer); 1769 } 1770 } 1771 } else if (!InternetGetConnectedState(&ret_flags, 0)) { 1772 error_setg(errp, "No internet connection on guest, sync not " 1773 "accurate"); 1774 } 1775 return; 1776 } 1777 1778 /* Validate time passed by user. */ 1779 if (time_ns < 0 || time_ns / 100 > INT64_MAX - W32_FT_OFFSET) { 1780 error_setg(errp, "Time %" PRId64 "is invalid", time_ns); 1781 return; 1782 } 1783 1784 time = time_ns / 100 + W32_FT_OFFSET; 1785 1786 tf.dwLowDateTime = (DWORD) time; 1787 tf.dwHighDateTime = (DWORD) (time >> 32); 1788 1789 if (!FileTimeToSystemTime(&tf, &ts)) { 1790 error_setg(errp, "Failed to convert system time %d", 1791 (int)GetLastError()); 1792 return; 1793 } 1794 1795 acquire_privilege(SE_SYSTEMTIME_NAME, &local_err); 1796 if (local_err) { 1797 error_propagate(errp, local_err); 1798 return; 1799 } 1800 1801 if (!SetSystemTime(&ts)) { 1802 error_setg(errp, "Failed to set time to guest: %d", (int)GetLastError()); 1803 return; 1804 } 1805 } 1806 1807 GuestLogicalProcessorList *qmp_guest_get_vcpus(Error **errp) 1808 { 1809 PSYSTEM_LOGICAL_PROCESSOR_INFORMATION pslpi, ptr; 1810 DWORD length; 1811 GuestLogicalProcessorList *head, **tail; 1812 Error *local_err = NULL; 1813 int64_t current; 1814 1815 ptr = pslpi = NULL; 1816 length = 0; 1817 current = 0; 1818 head = NULL; 1819 tail = &head; 1820 1821 if ((GetLogicalProcessorInformation(pslpi, &length) == FALSE) && 1822 (GetLastError() == ERROR_INSUFFICIENT_BUFFER) && 1823 (length > sizeof(SYSTEM_LOGICAL_PROCESSOR_INFORMATION))) { 1824 ptr = pslpi = g_malloc0(length); 1825 if (GetLogicalProcessorInformation(pslpi, &length) == FALSE) { 1826 error_setg(&local_err, "Failed to get processor information: %d", 1827 (int)GetLastError()); 1828 } 1829 } else { 1830 error_setg(&local_err, 1831 "Failed to get processor information buffer length: %d", 1832 (int)GetLastError()); 1833 } 1834 1835 while ((local_err == NULL) && (length > 0)) { 1836 if (pslpi->Relationship == RelationProcessorCore) { 1837 ULONG_PTR cpu_bits = pslpi->ProcessorMask; 1838 1839 while (cpu_bits > 0) { 1840 if (!!(cpu_bits & 1)) { 1841 GuestLogicalProcessor *vcpu; 1842 1843 vcpu = g_malloc0(sizeof *vcpu); 1844 vcpu->logical_id = current++; 1845 vcpu->online = true; 1846 vcpu->has_can_offline = true; 1847 1848 QAPI_LIST_APPEND(tail, vcpu); 1849 } 1850 cpu_bits >>= 1; 1851 } 1852 } 1853 length -= sizeof(SYSTEM_LOGICAL_PROCESSOR_INFORMATION); 1854 pslpi++; /* next entry */ 1855 } 1856 1857 g_free(ptr); 1858 1859 if (local_err == NULL) { 1860 if (head != NULL) { 1861 return head; 1862 } 1863 /* there's no guest with zero VCPUs */ 1864 error_setg(&local_err, "Guest reported zero VCPUs"); 1865 } 1866 1867 qapi_free_GuestLogicalProcessorList(head); 1868 error_propagate(errp, local_err); 1869 return NULL; 1870 } 1871 1872 int64_t qmp_guest_set_vcpus(GuestLogicalProcessorList *vcpus, Error **errp) 1873 { 1874 error_setg(errp, QERR_UNSUPPORTED); 1875 return -1; 1876 } 1877 1878 static gchar * 1879 get_net_error_message(gint error) 1880 { 1881 HMODULE module = NULL; 1882 gchar *retval = NULL; 1883 wchar_t *msg = NULL; 1884 int flags; 1885 size_t nchars; 1886 1887 flags = FORMAT_MESSAGE_ALLOCATE_BUFFER | 1888 FORMAT_MESSAGE_IGNORE_INSERTS | 1889 FORMAT_MESSAGE_FROM_SYSTEM; 1890 1891 if (error >= NERR_BASE && error <= MAX_NERR) { 1892 module = LoadLibraryExW(L"netmsg.dll", NULL, LOAD_LIBRARY_AS_DATAFILE); 1893 1894 if (module != NULL) { 1895 flags |= FORMAT_MESSAGE_FROM_HMODULE; 1896 } 1897 } 1898 1899 FormatMessageW(flags, module, error, 0, (LPWSTR)&msg, 0, NULL); 1900 1901 if (msg != NULL) { 1902 nchars = wcslen(msg); 1903 1904 if (nchars >= 2 && 1905 msg[nchars - 1] == L'\n' && 1906 msg[nchars - 2] == L'\r') { 1907 msg[nchars - 2] = L'\0'; 1908 } 1909 1910 retval = g_utf16_to_utf8(msg, -1, NULL, NULL, NULL); 1911 1912 LocalFree(msg); 1913 } 1914 1915 if (module != NULL) { 1916 FreeLibrary(module); 1917 } 1918 1919 return retval; 1920 } 1921 1922 void qmp_guest_set_user_password(const char *username, 1923 const char *password, 1924 bool crypted, 1925 Error **errp) 1926 { 1927 NET_API_STATUS nas; 1928 char *rawpasswddata = NULL; 1929 size_t rawpasswdlen; 1930 wchar_t *user = NULL, *wpass = NULL; 1931 USER_INFO_1003 pi1003 = { 0, }; 1932 GError *gerr = NULL; 1933 1934 if (crypted) { 1935 error_setg(errp, QERR_UNSUPPORTED); 1936 return; 1937 } 1938 1939 rawpasswddata = (char *)qbase64_decode(password, -1, &rawpasswdlen, errp); 1940 if (!rawpasswddata) { 1941 return; 1942 } 1943 rawpasswddata = g_renew(char, rawpasswddata, rawpasswdlen + 1); 1944 rawpasswddata[rawpasswdlen] = '\0'; 1945 1946 user = g_utf8_to_utf16(username, -1, NULL, NULL, &gerr); 1947 if (!user) { 1948 goto done; 1949 } 1950 1951 wpass = g_utf8_to_utf16(rawpasswddata, -1, NULL, NULL, &gerr); 1952 if (!wpass) { 1953 goto done; 1954 } 1955 1956 pi1003.usri1003_password = wpass; 1957 nas = NetUserSetInfo(NULL, user, 1958 1003, (LPBYTE)&pi1003, 1959 NULL); 1960 1961 if (nas != NERR_Success) { 1962 gchar *msg = get_net_error_message(nas); 1963 error_setg(errp, "failed to set password: %s", msg); 1964 g_free(msg); 1965 } 1966 1967 done: 1968 if (gerr) { 1969 error_setg(errp, QERR_QGA_COMMAND_FAILED, gerr->message); 1970 g_error_free(gerr); 1971 } 1972 g_free(user); 1973 g_free(wpass); 1974 g_free(rawpasswddata); 1975 } 1976 1977 GuestMemoryBlockList *qmp_guest_get_memory_blocks(Error **errp) 1978 { 1979 error_setg(errp, QERR_UNSUPPORTED); 1980 return NULL; 1981 } 1982 1983 GuestMemoryBlockResponseList * 1984 qmp_guest_set_memory_blocks(GuestMemoryBlockList *mem_blks, Error **errp) 1985 { 1986 error_setg(errp, QERR_UNSUPPORTED); 1987 return NULL; 1988 } 1989 1990 GuestMemoryBlockInfo *qmp_guest_get_memory_block_info(Error **errp) 1991 { 1992 error_setg(errp, QERR_UNSUPPORTED); 1993 return NULL; 1994 } 1995 1996 /* add unsupported commands to the list of blocked RPCs */ 1997 GList *ga_command_init_blockedrpcs(GList *blockedrpcs) 1998 { 1999 const char *list_unsupported[] = { 2000 "guest-suspend-hybrid", 2001 "guest-set-vcpus", 2002 "guest-get-memory-blocks", "guest-set-memory-blocks", 2003 "guest-get-memory-block-size", "guest-get-memory-block-info", 2004 NULL}; 2005 char **p = (char **)list_unsupported; 2006 2007 while (*p) { 2008 blockedrpcs = g_list_append(blockedrpcs, g_strdup(*p++)); 2009 } 2010 2011 if (!vss_init(true)) { 2012 g_debug("vss_init failed, vss commands are going to be disabled"); 2013 const char *list[] = { 2014 "guest-get-fsinfo", "guest-fsfreeze-status", 2015 "guest-fsfreeze-freeze", "guest-fsfreeze-thaw", NULL}; 2016 p = (char **)list; 2017 2018 while (*p) { 2019 blockedrpcs = g_list_append(blockedrpcs, g_strdup(*p++)); 2020 } 2021 } 2022 2023 return blockedrpcs; 2024 } 2025 2026 /* register init/cleanup routines for stateful command groups */ 2027 void ga_command_state_init(GAState *s, GACommandState *cs) 2028 { 2029 if (!vss_initialized()) { 2030 ga_command_state_add(cs, NULL, guest_fsfreeze_cleanup); 2031 } 2032 } 2033 2034 /* MINGW is missing two fields: IncomingFrames & OutgoingFrames */ 2035 typedef struct _GA_WTSINFOA { 2036 WTS_CONNECTSTATE_CLASS State; 2037 DWORD SessionId; 2038 DWORD IncomingBytes; 2039 DWORD OutgoingBytes; 2040 DWORD IncomingFrames; 2041 DWORD OutgoingFrames; 2042 DWORD IncomingCompressedBytes; 2043 DWORD OutgoingCompressedBy; 2044 CHAR WinStationName[WINSTATIONNAME_LENGTH]; 2045 CHAR Domain[DOMAIN_LENGTH]; 2046 CHAR UserName[USERNAME_LENGTH + 1]; 2047 LARGE_INTEGER ConnectTime; 2048 LARGE_INTEGER DisconnectTime; 2049 LARGE_INTEGER LastInputTime; 2050 LARGE_INTEGER LogonTime; 2051 LARGE_INTEGER CurrentTime; 2052 2053 } GA_WTSINFOA; 2054 2055 GuestUserList *qmp_guest_get_users(Error **errp) 2056 { 2057 #define QGA_NANOSECONDS 10000000 2058 2059 GHashTable *cache = NULL; 2060 GuestUserList *head = NULL, **tail = &head; 2061 2062 DWORD buffer_size = 0, count = 0, i = 0; 2063 GA_WTSINFOA *info = NULL; 2064 WTS_SESSION_INFOA *entries = NULL; 2065 GuestUser *user = NULL; 2066 gpointer value = NULL; 2067 INT64 login = 0; 2068 double login_time = 0; 2069 2070 cache = g_hash_table_new(g_str_hash, g_str_equal); 2071 2072 if (WTSEnumerateSessionsA(NULL, 0, 1, &entries, &count)) { 2073 for (i = 0; i < count; ++i) { 2074 buffer_size = 0; 2075 info = NULL; 2076 if (WTSQuerySessionInformationA( 2077 NULL, 2078 entries[i].SessionId, 2079 WTSSessionInfo, 2080 (LPSTR *)&info, 2081 &buffer_size 2082 )) { 2083 2084 if (strlen(info->UserName) == 0) { 2085 WTSFreeMemory(info); 2086 continue; 2087 } 2088 2089 login = info->LogonTime.QuadPart; 2090 login -= W32_FT_OFFSET; 2091 login_time = ((double)login) / QGA_NANOSECONDS; 2092 2093 if (g_hash_table_contains(cache, info->UserName)) { 2094 value = g_hash_table_lookup(cache, info->UserName); 2095 user = (GuestUser *)value; 2096 if (user->login_time > login_time) { 2097 user->login_time = login_time; 2098 } 2099 } else { 2100 user = g_new0(GuestUser, 1); 2101 2102 user->user = g_strdup(info->UserName); 2103 user->domain = g_strdup(info->Domain); 2104 2105 user->login_time = login_time; 2106 2107 g_hash_table_add(cache, user->user); 2108 2109 QAPI_LIST_APPEND(tail, user); 2110 } 2111 } 2112 WTSFreeMemory(info); 2113 } 2114 WTSFreeMemory(entries); 2115 } 2116 g_hash_table_destroy(cache); 2117 return head; 2118 } 2119 2120 typedef struct _ga_matrix_lookup_t { 2121 int major; 2122 int minor; 2123 const char *version; 2124 const char *version_id; 2125 } ga_matrix_lookup_t; 2126 2127 static const ga_matrix_lookup_t WIN_CLIENT_VERSION_MATRIX[] = { 2128 { 5, 0, "Microsoft Windows 2000", "2000"}, 2129 { 5, 1, "Microsoft Windows XP", "xp"}, 2130 { 6, 0, "Microsoft Windows Vista", "vista"}, 2131 { 6, 1, "Microsoft Windows 7" "7"}, 2132 { 6, 2, "Microsoft Windows 8", "8"}, 2133 { 6, 3, "Microsoft Windows 8.1", "8.1"}, 2134 { } 2135 }; 2136 2137 static const ga_matrix_lookup_t WIN_SERVER_VERSION_MATRIX[] = { 2138 { 5, 2, "Microsoft Windows Server 2003", "2003"}, 2139 { 6, 0, "Microsoft Windows Server 2008", "2008"}, 2140 { 6, 1, "Microsoft Windows Server 2008 R2", "2008r2"}, 2141 { 6, 2, "Microsoft Windows Server 2012", "2012"}, 2142 { 6, 3, "Microsoft Windows Server 2012 R2", "2012r2"}, 2143 { }, 2144 }; 2145 2146 typedef struct _ga_win_10_0_t { 2147 int first_build; 2148 const char *version; 2149 const char *version_id; 2150 } ga_win_10_0_t; 2151 2152 static const ga_win_10_0_t WIN_10_0_SERVER_VERSION_MATRIX[] = { 2153 {14393, "Microsoft Windows Server 2016", "2016"}, 2154 {17763, "Microsoft Windows Server 2019", "2019"}, 2155 {20344, "Microsoft Windows Server 2022", "2022"}, 2156 {26040, "MIcrosoft Windows Server 2025", "2025"}, 2157 { } 2158 }; 2159 2160 static const ga_win_10_0_t WIN_10_0_CLIENT_VERSION_MATRIX[] = { 2161 {10240, "Microsoft Windows 10", "10"}, 2162 {22000, "Microsoft Windows 11", "11"}, 2163 { } 2164 }; 2165 2166 static void ga_get_win_version(RTL_OSVERSIONINFOEXW *info, Error **errp) 2167 { 2168 typedef NTSTATUS(WINAPI *rtl_get_version_t)( 2169 RTL_OSVERSIONINFOEXW *os_version_info_ex); 2170 2171 info->dwOSVersionInfoSize = sizeof(RTL_OSVERSIONINFOEXW); 2172 2173 HMODULE module = GetModuleHandle("ntdll"); 2174 PVOID fun = GetProcAddress(module, "RtlGetVersion"); 2175 if (fun == NULL) { 2176 error_setg(errp, QERR_QGA_COMMAND_FAILED, 2177 "Failed to get address of RtlGetVersion"); 2178 return; 2179 } 2180 2181 rtl_get_version_t rtl_get_version = (rtl_get_version_t)fun; 2182 rtl_get_version(info); 2183 return; 2184 } 2185 2186 static char *ga_get_win_name(const OSVERSIONINFOEXW *os_version, bool id) 2187 { 2188 DWORD major = os_version->dwMajorVersion; 2189 DWORD minor = os_version->dwMinorVersion; 2190 DWORD build = os_version->dwBuildNumber; 2191 int tbl_idx = (os_version->wProductType != VER_NT_WORKSTATION); 2192 const ga_matrix_lookup_t *table = tbl_idx ? 2193 WIN_SERVER_VERSION_MATRIX : WIN_CLIENT_VERSION_MATRIX; 2194 const ga_win_10_0_t *win_10_0_table = tbl_idx ? 2195 WIN_10_0_SERVER_VERSION_MATRIX : WIN_10_0_CLIENT_VERSION_MATRIX; 2196 const ga_win_10_0_t *win_10_0_version = NULL; 2197 while (table->version != NULL) { 2198 if (major == 10 && minor == 0) { 2199 while (win_10_0_table->version != NULL) { 2200 if (build >= win_10_0_table->first_build) { 2201 win_10_0_version = win_10_0_table; 2202 } 2203 win_10_0_table++; 2204 } 2205 if (win_10_0_table) { 2206 if (id) { 2207 return g_strdup(win_10_0_version->version_id); 2208 } else { 2209 return g_strdup(win_10_0_version->version); 2210 } 2211 } 2212 } else if (major == table->major && minor == table->minor) { 2213 if (id) { 2214 return g_strdup(table->version_id); 2215 } else { 2216 return g_strdup(table->version); 2217 } 2218 } 2219 ++table; 2220 } 2221 slog("failed to lookup Windows version: major=%lu, minor=%lu", 2222 major, minor); 2223 return g_strdup("N/A"); 2224 } 2225 2226 static char *ga_get_win_product_name(Error **errp) 2227 { 2228 HKEY key = INVALID_HANDLE_VALUE; 2229 DWORD size = 128; 2230 char *result = g_malloc0(size); 2231 LONG err = ERROR_SUCCESS; 2232 2233 err = RegOpenKeyA(HKEY_LOCAL_MACHINE, 2234 "SOFTWARE\\Microsoft\\Windows NT\\CurrentVersion", 2235 &key); 2236 if (err != ERROR_SUCCESS) { 2237 error_setg_win32(errp, err, "failed to open registry key"); 2238 g_free(result); 2239 return NULL; 2240 } 2241 2242 err = RegQueryValueExA(key, "ProductName", NULL, NULL, 2243 (LPBYTE)result, &size); 2244 if (err == ERROR_MORE_DATA) { 2245 slog("ProductName longer than expected (%lu bytes), retrying", 2246 size); 2247 g_free(result); 2248 result = NULL; 2249 if (size > 0) { 2250 result = g_malloc0(size); 2251 err = RegQueryValueExA(key, "ProductName", NULL, NULL, 2252 (LPBYTE)result, &size); 2253 } 2254 } 2255 if (err != ERROR_SUCCESS) { 2256 error_setg_win32(errp, err, "failed to retrieve ProductName"); 2257 goto fail; 2258 } 2259 2260 RegCloseKey(key); 2261 return result; 2262 2263 fail: 2264 if (key != INVALID_HANDLE_VALUE) { 2265 RegCloseKey(key); 2266 } 2267 g_free(result); 2268 return NULL; 2269 } 2270 2271 static char *ga_get_current_arch(void) 2272 { 2273 SYSTEM_INFO info; 2274 GetNativeSystemInfo(&info); 2275 char *result = NULL; 2276 switch (info.wProcessorArchitecture) { 2277 case PROCESSOR_ARCHITECTURE_AMD64: 2278 result = g_strdup("x86_64"); 2279 break; 2280 case PROCESSOR_ARCHITECTURE_ARM: 2281 result = g_strdup("arm"); 2282 break; 2283 case PROCESSOR_ARCHITECTURE_IA64: 2284 result = g_strdup("ia64"); 2285 break; 2286 case PROCESSOR_ARCHITECTURE_INTEL: 2287 result = g_strdup("x86"); 2288 break; 2289 case PROCESSOR_ARCHITECTURE_UNKNOWN: 2290 default: 2291 slog("unknown processor architecture 0x%0x", 2292 info.wProcessorArchitecture); 2293 result = g_strdup("unknown"); 2294 break; 2295 } 2296 return result; 2297 } 2298 2299 GuestOSInfo *qmp_guest_get_osinfo(Error **errp) 2300 { 2301 Error *local_err = NULL; 2302 OSVERSIONINFOEXW os_version = {0}; 2303 bool server; 2304 char *product_name; 2305 GuestOSInfo *info; 2306 2307 ga_get_win_version(&os_version, &local_err); 2308 if (local_err) { 2309 error_propagate(errp, local_err); 2310 return NULL; 2311 } 2312 2313 server = os_version.wProductType != VER_NT_WORKSTATION; 2314 product_name = ga_get_win_product_name(errp); 2315 if (product_name == NULL) { 2316 return NULL; 2317 } 2318 2319 info = g_new0(GuestOSInfo, 1); 2320 2321 info->kernel_version = g_strdup_printf("%lu.%lu", 2322 os_version.dwMajorVersion, 2323 os_version.dwMinorVersion); 2324 info->kernel_release = g_strdup_printf("%lu", 2325 os_version.dwBuildNumber); 2326 info->machine = ga_get_current_arch(); 2327 2328 info->id = g_strdup("mswindows"); 2329 info->name = g_strdup("Microsoft Windows"); 2330 info->pretty_name = product_name; 2331 info->version = ga_get_win_name(&os_version, false); 2332 info->version_id = ga_get_win_name(&os_version, true); 2333 info->variant = g_strdup(server ? "server" : "client"); 2334 info->variant_id = g_strdup(server ? "server" : "client"); 2335 2336 return info; 2337 } 2338 2339 /* 2340 * Safely get device property. Returned strings are using wide characters. 2341 * Caller is responsible for freeing the buffer. 2342 */ 2343 static LPBYTE cm_get_property(DEVINST devInst, const DEVPROPKEY *propName, 2344 PDEVPROPTYPE propType) 2345 { 2346 CONFIGRET cr; 2347 g_autofree LPBYTE buffer = NULL; 2348 ULONG buffer_len = 0; 2349 2350 /* First query for needed space */ 2351 cr = CM_Get_DevNode_PropertyW(devInst, propName, propType, 2352 buffer, &buffer_len, 0); 2353 if (cr != CR_SUCCESS && cr != CR_BUFFER_SMALL) { 2354 2355 slog("failed to get property size, error=0x%lx", cr); 2356 return NULL; 2357 } 2358 buffer = g_new0(BYTE, buffer_len + 1); 2359 cr = CM_Get_DevNode_PropertyW(devInst, propName, propType, 2360 buffer, &buffer_len, 0); 2361 if (cr != CR_SUCCESS) { 2362 slog("failed to get device property, error=0x%lx", cr); 2363 return NULL; 2364 } 2365 return g_steal_pointer(&buffer); 2366 } 2367 2368 static GStrv ga_get_hardware_ids(DEVINST devInstance) 2369 { 2370 GArray *values = NULL; 2371 DEVPROPTYPE cm_type; 2372 LPWSTR id; 2373 g_autofree LPWSTR property = (LPWSTR)cm_get_property(devInstance, 2374 &qga_DEVPKEY_Device_HardwareIds, &cm_type); 2375 if (property == NULL) { 2376 slog("failed to get hardware IDs"); 2377 return NULL; 2378 } 2379 if (*property == '\0') { 2380 /* empty list */ 2381 return NULL; 2382 } 2383 values = g_array_new(TRUE, TRUE, sizeof(gchar *)); 2384 for (id = property; '\0' != *id; id += lstrlenW(id) + 1) { 2385 gchar *id8 = g_utf16_to_utf8(id, -1, NULL, NULL, NULL); 2386 g_array_append_val(values, id8); 2387 } 2388 return (GStrv)g_array_free(values, FALSE); 2389 } 2390 2391 /* 2392 * https://docs.microsoft.com/en-us/windows-hardware/drivers/install/identifiers-for-pci-devices 2393 */ 2394 #define DEVICE_PCI_RE "PCI\\\\VEN_(1AF4|1B36)&DEV_([0-9A-B]{4})(&|$)" 2395 2396 GuestDeviceInfoList *qmp_guest_get_devices(Error **errp) 2397 { 2398 GuestDeviceInfoList *head = NULL, **tail = &head; 2399 HDEVINFO dev_info = INVALID_HANDLE_VALUE; 2400 SP_DEVINFO_DATA dev_info_data; 2401 int i, j; 2402 GError *gerr = NULL; 2403 g_autoptr(GRegex) device_pci_re = NULL; 2404 DEVPROPTYPE cm_type; 2405 2406 device_pci_re = g_regex_new(DEVICE_PCI_RE, 2407 G_REGEX_ANCHORED | G_REGEX_OPTIMIZE, 0, 2408 &gerr); 2409 g_assert(device_pci_re != NULL); 2410 2411 dev_info_data.cbSize = sizeof(SP_DEVINFO_DATA); 2412 dev_info = SetupDiGetClassDevs(0, 0, 0, DIGCF_PRESENT | DIGCF_ALLCLASSES); 2413 if (dev_info == INVALID_HANDLE_VALUE) { 2414 error_setg(errp, "failed to get device tree"); 2415 return NULL; 2416 } 2417 2418 slog("enumerating devices"); 2419 for (i = 0; SetupDiEnumDeviceInfo(dev_info, i, &dev_info_data); i++) { 2420 bool skip = true; 2421 g_autofree LPWSTR name = NULL; 2422 g_autofree LPFILETIME date = NULL; 2423 g_autofree LPWSTR version = NULL; 2424 g_auto(GStrv) hw_ids = NULL; 2425 g_autoptr(GuestDeviceInfo) device = g_new0(GuestDeviceInfo, 1); 2426 g_autofree char *vendor_id = NULL; 2427 g_autofree char *device_id = NULL; 2428 2429 name = (LPWSTR)cm_get_property(dev_info_data.DevInst, 2430 &qga_DEVPKEY_NAME, &cm_type); 2431 if (name == NULL) { 2432 slog("failed to get device description"); 2433 continue; 2434 } 2435 device->driver_name = g_utf16_to_utf8(name, -1, NULL, NULL, NULL); 2436 if (device->driver_name == NULL) { 2437 error_setg(errp, "conversion to utf8 failed (driver name)"); 2438 return NULL; 2439 } 2440 slog("querying device: %s", device->driver_name); 2441 hw_ids = ga_get_hardware_ids(dev_info_data.DevInst); 2442 if (hw_ids == NULL) { 2443 continue; 2444 } 2445 for (j = 0; hw_ids[j] != NULL; j++) { 2446 g_autoptr(GMatchInfo) match_info; 2447 GuestDeviceIdPCI *id; 2448 if (!g_regex_match(device_pci_re, hw_ids[j], 0, &match_info)) { 2449 continue; 2450 } 2451 skip = false; 2452 2453 vendor_id = g_match_info_fetch(match_info, 1); 2454 device_id = g_match_info_fetch(match_info, 2); 2455 2456 device->id = g_new0(GuestDeviceId, 1); 2457 device->id->type = GUEST_DEVICE_TYPE_PCI; 2458 id = &device->id->u.pci; 2459 id->vendor_id = g_ascii_strtoull(vendor_id, NULL, 16); 2460 id->device_id = g_ascii_strtoull(device_id, NULL, 16); 2461 2462 break; 2463 } 2464 if (skip) { 2465 continue; 2466 } 2467 2468 version = (LPWSTR)cm_get_property(dev_info_data.DevInst, 2469 &qga_DEVPKEY_Device_DriverVersion, &cm_type); 2470 if (version == NULL) { 2471 slog("failed to get driver version"); 2472 continue; 2473 } 2474 device->driver_version = g_utf16_to_utf8(version, -1, NULL, 2475 NULL, NULL); 2476 if (device->driver_version == NULL) { 2477 error_setg(errp, "conversion to utf8 failed (driver version)"); 2478 return NULL; 2479 } 2480 2481 date = (LPFILETIME)cm_get_property(dev_info_data.DevInst, 2482 &qga_DEVPKEY_Device_DriverDate, &cm_type); 2483 if (date == NULL) { 2484 slog("failed to get driver date"); 2485 continue; 2486 } 2487 device->driver_date = filetime_to_ns(date); 2488 device->has_driver_date = true; 2489 2490 slog("driver: %s\ndriver version: %" PRId64 ",%s\n", 2491 device->driver_name, device->driver_date, 2492 device->driver_version); 2493 QAPI_LIST_APPEND(tail, g_steal_pointer(&device)); 2494 } 2495 2496 if (dev_info != INVALID_HANDLE_VALUE) { 2497 SetupDiDestroyDeviceInfoList(dev_info); 2498 } 2499 return head; 2500 } 2501 2502 char *qga_get_host_name(Error **errp) 2503 { 2504 wchar_t tmp[MAX_COMPUTERNAME_LENGTH + 1]; 2505 DWORD size = G_N_ELEMENTS(tmp); 2506 2507 if (GetComputerNameW(tmp, &size) == 0) { 2508 error_setg_win32(errp, GetLastError(), "failed close handle"); 2509 return NULL; 2510 } 2511 2512 return g_utf16_to_utf8(tmp, size, NULL, NULL, NULL); 2513 } 2514 2515 GuestDiskStatsInfoList *qmp_guest_get_diskstats(Error **errp) 2516 { 2517 error_setg(errp, QERR_UNSUPPORTED); 2518 return NULL; 2519 } 2520 2521 GuestCpuStatsList *qmp_guest_get_cpustats(Error **errp) 2522 { 2523 error_setg(errp, QERR_UNSUPPORTED); 2524 return NULL; 2525 } 2526